CO OZNACZA SŁOWO NITROGEN
Azot
Azot, symbol N, jest pierwiastkiem chemicznym o liczbie atomowej 7. W temperaturze pokojowej jest to gaz cząsteczek dwuatomowych, bezbarwny i bezwonny. Azot jest wspólnym elementem we wszechświecie, szacowanym na około siódme w całkowitej liczbie w naszej galaktyce i Układzie Słonecznym. Na Ziemi pierwiastek znajduje się przede wszystkim jako cząsteczka gazu; tworzy około 78% atmosfery Ziemi. Elementem azotu odkryto jako oddzielny składnik powietrza, przez szkockiego lekarza Daniela Rutherford w 1772 roku. Wiele ważnych związków przemysłowych, takich jak amoniak, kwas azotowy, azotany organiczne i cyjanky zawierają azot. Bardzo silne wiązanie w azocie elementarnym dominuje w chemii azotu, powodując trudności zarówno dla organizmów jak i przemysłu w przekształcaniu N2 w użyteczne związki, ale jednocześnie powodując uwalnianie dużych ilości często użytecznej energii, gdy związki spalają, eksplodują lub rozkładają się z powrotem do gazu azotu. Syntetycznie produkowane amoniak i azotany są najważniejszymi nawozami przemysłowymi, a nawozy azotanowe są głównymi substancjami zanieczyszczającymi powodującymi eutrofizację systemów wodnych.
Definicja słowa nitrogen w słowniku
Definicja azotu w słowniku to bezbarwny, bezwonny względnie niereaktywny pierwiastek gazowy, który tworzy 78% powietrza, występuje w wielu związkach i jest niezbędnym składnikiem białek i kwasów nukleinowych: stosowany w produkcji amoniaku i innych chemikaliów oraz jako czynnik chłodniczy. Symbol: N; nr atomowy: 7; masa atomowa: 14.00674; wartościowość: 3 lub 5; gęstość: 1/2506 kg / m³; temperatura topnienia: -210,00 ° C; temperatura wrzenia: -1 95,8 ° C.
CYTATY ZE SŁOWEM «NITROGEN»
Słynne cytaty i zdania ze słowem
nitrogen.
Many years ago it was taught that plants and animals were composed of different materials: plants, of a chemical substance of three elements,- carbon, hydrogen, and oxygen; animals of one of four elements, nitrogen being added to the other three.
Gaseous nitrogen combines with gaseous hydrogen in simple quantitative proportions to produce gaseous ammonia.
Under natural conditions, the soil does not lose its fixed nitrogen.
Agricultural husbandry essentially maintains the balance of bound nitrogen.
The Swedish Academy of Sciences has seen fit, by awarding the Nobel Prize, to honour the method of producing ammonia from nitrogen and hydrogen.
If you look at the ecological circuitry of this planet, the ways in which materials like carbon or sulfur or phosphorous or nitrogen get cycled in ways that makes them available for our biology, the organisms that do the heavy lifting are bacteria.
The more the relationships of the nitrogen-rich substances to the cell nucleus were recognized, the more the question of the arrangement of the nitrogen and carbon atoms in the molecule came to stand out.
We sometimes freeze the specimen with liquid nitrogen, which is extremely cold, you know. This is another technique we use now - but the specimens are not alive.
Nitrogen fertilizer is used on all crops produced in this country, but it is a key plant nutrient to produce corn a critical crop to Illinois farmers.
The usual way of growing cotton is highly petrochemical-intensive, requiring 110 pounds of nitrogen fertilizer per acre. Some of the fertilizer is broken down by soil bacteria into nitrate, a toxic and highly soluble chemical that can leach into groundwater or get washed into lakes, creating oxygenless dead zones.
KSIĄŻKI POWIĄZANE ZE SŁOWEM «NITROGEN»
Poznaj użycie słowa
nitrogen w następujących pozycjach bibliograficznych Książki powiązane ze słowem
nitrogen oraz krótkie ich fragmenty w celu przedstawienia kontekstu użycia w literaturze.
Discusses the origin, discovery, special characteristics, and use of nitrogen in such products as explosives and fertilizers.
2
Nitrogen in the Marine Environment
Since the first edition of Nitrogen in the Marine Environment was published in 1983, it has been recognized as the standard in the field.
Douglas G. Capone, Deborah A. Bronk, Margaret R. Mulholland,
2008
3
Nitrogen in the Environment
The scope of this book is diverse covering a range of topics and issues related to furthering our understanding of nitrogen in the environment at farm and national levels.
J.L. Hatfield, R.F. Follett,
2008
Explains the characteristics of nitrogen, where it is found, how it is used by humans, and its relationship to other elements found in the periodic table.
This book provides an introductory-level survey of biological nitrogen fixation, covering the role of the process in the global nitrogen cycle as well as its biochemistry, physiology, genetics, ecology, general biology and prospects for its ...
6
Biological
Nitrogen Fixation
Nitrogen fixation by photosynthetic bacteria. Nitrogen fixation in cyanobacteria. Nitrogen fixation by methanogenic bacteria. Associative nitrogen-fixing bacteria. Actinorhizal symbioses. Ecology of bradyrhizobium and rhizobium.
Gary Stacey, Robert H. Burris, Harold J. Evans,
1992
7
Nitrogen Fixation by Free-living Micro-organisms
This 1976 volume provides information, presented at an international symposium in Edinburgh, on the free-living nitrogen-fixing bacteria and blue-green algae.
William Duncan Patterson Stewart,
1975
8
Nitrogen Fixation: Fundamentals and Applications: ...
Proceedings of the 10th International Congress on Nitrogen Fixation, St. Petersburg, Russia, May 28--June 3, 1995
Igor A. Tikhonovich,
1995
9
High
Nitrogen Steels: Structure, Properties, Manufacture, ...
The book deals with the atomic structure, constitution, properties, manufacturing and application of matrensitic, austenitic, duplex and dualphase steels of superior strength and corrosion resistance.
Valentin G. Gavriljuk, Hans Berns,
1999
10
Nitrogen in Agricultural Systems
The editors and authors provide a truly excellent book. We anticipate that readers will find this book to be a highly valued resource
James Stuart Schepers, William Raun,
2008
WIADOMOŚCI, KTÓRE ZAWIERAJĄ SŁOWO «NITROGEN»
Sprawdź, o czym dyskutuje się w prasie krajowej i zagranicznej oraz jak jest stosowane słowo
nitrogen w wiadomościach.
Data: Mountains of nitrogen ice on Pluto might have evaporated
BALTIMORE -- The latest data downloaded from NASA's New Horizons spacecraft suggests mountains of nitrogen ice thousands of feet high ... «Sioux City Journal, Lip 15»
US Nitrogen, utility near deal on pipeline
US Nitrogen is close to reaching a settlement in one of several lawsuits ... US Nitrogen will be a long-term monthly customer of the utility district ... «Knoxville News Sentinel, Lip 15»
Value Stock to Watch: Rentech Nitrogen Partners, L.P. (NYSE:RNF)
Zacks Research has given Rentech Nitrogen Partners, L.P. (NYSE:RNF) a top value style score. The score is derived from various criteria that ... «Enterprise Leader, Lip 15»
Corn leaf greenness affected by nitrogen rate, row spacing and …
Leaf greenness of two corn hybrids increased with nitrogen rate as ... 36,000 and 42,000 per acre, and two nitrogen (N) rates of 120 and 240 ... «Michigan State University Extension, Lip 15»
Intel Core i7-6700K 'Skylake' overclocked to 6.50GHz with LN2
While the record was set using liquid nitrogen cooling, this is a yet another proof that the new CPUs are good overclockers in general. «KitGuru, Lip 15»
World Water Works Announces DEMON Nitrogen Removal …
This system reduces energy requirements by 60 percent compared to traditional nitrogen removal processes, eliminates the need for all ... «Water Online, Lip 15»
Airgas acquires Weldinghouse, nitrogen services unit of Priority …
Weldinghouse is an industrial gas and welding supply distributor that generated more than $19 million in sales in calendar year 2014. «Hydrocarbon Processing, Lip 15»
New choices for winning the nitrogen risk game
But risk assessment using rainfall is a game many farmers are going to have to play when it comes to their nitrogen management plan for this ... «agprofessional.com, Lip 15»
GenSan to put up liquid nitrogen plant for livestock sector
GENERAL SANTOS CITY (MindaNews / 22 July) – The city government is planning to establish a liquid nitrogen (LN2) plant in a bid to ... «Minda News, Lip 15»
Stock Rating Update on Rentech Nitrogen Partners, L.P. (NYSE:RNF)
Rentech Nitrogen Partners, L.P. (NYSE:RNF) has been issued a 2 rating by the sell-side brokerage firms covering the stock. Basing the rating ... «Investor Newswire, Lip 15»